Program
Preliminary program in .pdf
International workshop «Dzyaloshinskii-Moriya Interaction and Exotic Spin Structures»
Session 1. Monoaxial chiral helimagnets.
Session 2. DMI effect on the magnetic structure.
Session 3. Exotic spin structures (skyrmions).
Session 4. Evolution of the magnetic structure in helimagnets under high pressure.
Session 5. Spin excitations in helimagnets with DM interaction.
Session 6. Neutron scattering for non-collinear magnetism.
Session 7. Thin films and surface effects in cubic ferromagnets without center of
symmetry.
Monday. 8 July 2019
9.00 - 9.30 Opening ceremony
Session 1. Monoaxial chiral helimagnets.
Chair: Kazuhisa Kakurai
9.30 – 10.15 Jun-ichiro Kishine (Prof., The Open University of Japan, Japan)
«Highly nonlinear dynamics of chiral solitons in a mono-axial helimagnet»
10.15 – 11.00 Yoshihiko Togawa (Dr., Osaka Prefecture University, Japan)
«Anomalous physical responses on chiral magnetic materials»
11.00 -11.30 Coffee break
11.30 – 12.00 Alexander S. Ovchinnikov (Prof., Ural Federal University Ekaterinburg, Russia)
«Theory of standing waves in finite-size soliton lattice»
12.00 – 12.15 Alexey Tereschenko (Mr., Institute of Natural Sciences and Mathematics of Ural Federal University, Ekaterinburg, Russia)
«Magnitostriction effects in thin films of monoaxial chiral helimagnets: double sine-Gordon model»
12.15 – 12.30 Alexey Bykov (Dr., Petersburg Nuclear Physics Institute of NRC «Kurchatov Institute», Gatchina, Russia)
«Magnetic phase diagram of the uniaxial helimagnet Cr1/3NbS2: evidence from small angle neutron scattering»
12.30 – 13.00 Oleg Utesov (Dr., Petersburg Nuclear Physics Institute of NRC «Kurchatov Institute», Gatchina, Russia)
«Spiral plane flops in frustrated helimagnets in external magnetic field»
13.00 -14.00 Lunch
Session 2. DMI effect on the magnetic structure.
Chair: Alexander S. Ovchinnikov
14.00 – 14.30 Igor Lyubutin (Prof., Shubnikov Institute of Crystallography of FSRC «Crystallography and Photonics» RAS)
«Helical Magnetic Structures in the Langasite Family Crystals Related to the Dzyaloshinskii-Morya Effect»
14.30 – 15.00 Tetsuya Takeuchi (Dr., Low Temperature Center, Osaka University)
«Unique Magnetic Field versus Temperature Phase Diagrams in Cubic Chiral Antiferromagnet EuPtSi»
15.00 – 15.30 Alexander Smirnov (Prof., P. L. Kapitza Institute for Physical Problems RAS)
«Spinons modified by uniform Dzyaloshinskii-Moriya interaction»
15.30 -16.00 Coffee break
16.00 – 16.30 Hisatomo Harima (Prof., Kobe University, Japan)
«Fermi surfaces of cubic chiral ullmannite-type compounds»
16.30 – 17.00 Andrey Rogalev (Dr., ESRF, France)
«X-ray spectroscopy of chiral molecular magnets»
17.00 – 17.30 Roman Morgunov (Prof., Institute of Problems of Chemical Physics, Russia)
«Magnetization reversal in K0.4(Cr(CN)6)(Mn(S)-pn)(S)-pnH0.6 chiral molecular ferrimagnet by FORC»
17.30 – 17.45 Naoto Tsuchiya (Mr., Hiroshima University, Japan)
«Magneto-elastic coupling in Organic-Inorganic Materials having Ferroelasticity and Magnetic Long Range Order»
17.45 – 18.15 Jun Akimitsu (Prof., Okayama University, Japan)
«Trial to carrier-doping in Sr2IrO4 with strong spin-orbit coupling»
19.00 Welcome party
Tuesday. 9 July 2019
Session 3. Exotic spin structures (skyrmions).
Chair: Javier Campo
9.30 – 10.00 Isabelle Mirebeau (Prof., LLB, Saclay, France)
«Spin textures induced by quenched disorder in a reentrant spin glass: vortices versus frustrated skyrmions»
10.00 – 10.30 Kazuhisa Kakurai (Prof., Comprehensive Research Organization for Science and Society (CROSS), Japan)
«Skyrmion related neutron scattering research activities on TAIKAN in collaboration with RIKEN CEMS»
10.30– 11.00 Victor Ukleev (Dr., Paul Scherrer Institute, Switzerland)
«Element-specific soft X-ray spectroscopy, scattering and imaging studies of skyrmion-hosting compound Co8Zn8Mn4»
11.00 – 11.30 Coffee break
11.30– 12.00 Evgeny Altynbaev (Dr., Petersburg Nuclear Physics Institute of NRC «Kurchatov Institute», Gatchina, Russia)
«Appearance of the skyrmion lattice in Fe-doped MnGe compounds»
12.00– 12.30 Tobias Weber (Dr., Institute Laue-Langevin (ILL), France)
«Polarisation Analysis of the Nonreciprocal Skyrmion Dynamics in MnSi»
12.30– 12.45 Andrey Tsypilnikov (Mr., Petersburg Nuclear Physics Institute of NRC «Kurchatov Institute», Gatchina, Russia)
«Calculation of the spectrum of magnons on the skyrmion lattice in the Landau functions basis»
12.45– 13.00 Ankit Labh (Mr., TUDelft, Delft, Netherlands)
«Magnetic correlations in the frustrated antiferromagnet FeCl3»
13.00 – 14.00 Lunch
Session 4. Evolution of the magnetic structure in helimagnets under high pressure.
Chair: Jun–ichiro Kishine
14.00– 14.20 Denis Salamatin (Dr., Vereshchagin Institute for High Pressure Physics, RAS, Moscow, Troitsk, Russia)
«Magnetic ordering above 30 K in noncentrosymmetric YbCoC2»
14.20– 14.40 Vladimir Sidorov (Dr., Vereshchagin Institute for High Pressure Physics, RAS, Moscow, Troitsk, Russia)
«Anomalous magnetism and Kondo-lattice state in noncentrosymmetric YbNiC2 and their evolution at high pressure.»
14.40– 15.05 Shigeo Ohara (Prof., Nagoya Institute of Technology, Nagoya, Japan)
«Single Crystal Growth of Chiral Magnet YbNi3Al9 using Flux Method in a Temperature Gradient»
15.05– 15.30 Kazunori Umeo (Dr., N-BARD, Hiroshima University, Japan)
«Pressure-induced magnetic ordered phase in the chiral compound YbNi3Ga9 studied by Hall effect and magneto-resistance under pressures up to 12 GPa»
15.30 – 16.00 Coffee break
16.00 – 16.20 Yusuke Kosaka (Dr., Okayama University, Japan)
«Neutron Scattering Experiments of CsCuCl3 under High Magnetic Field and High Pressur»
16.20 – 16.40 Hiroyasu Matsuura (Dr., The University of Tokyo, Japan)
«Theory of Magnetic Phase Diagram in Chiral Magnet CsCuCl3 under High Pressures»
17.00 Excursion through the down-town Petrozavodsk
Wednesday. 10 July 2019
Session 5. Spin excitations in helimagnets with DM interaction
Chairman: Sergey Grigoriev
9.30 – 10.00 Javier Campo (Prof., Instituto de Ciencia de Materiales de Aragón – Universidad de Zaragoza, Zaragoza, Spain)
«The role of the thermal fluctuations in cubic helimagnets: stabilization of new phases at low temperature»
10.00 – 10.25 Alla Petrova (Dr., Institute for High Pressure Physics of RAS, Moscow, Russia)
«The physical properties of (Mn0.85Fe0.15)Si along the critical trajectory»
10.30 – 11.00 Nicolas Martin (Dr., LLB, Saclay, France)
«Liquid crystalline structures and elasticity in a cubic chiral helimagnet»
11.00 – 11.15 Ekaterina Iashina (Mrs., Petersburg Nuclear Physics Institute of NRC «Kurchatov Institute», Gatchina, Russia)
«Three-dimensional neutron polarization analysis of the small-angle scattering from helimagnetic fluctuations»
11.15 – 11.45 Homma Yoshiya (Dr., IMR, Tohoku University, Japan )
«Magnetic Fluctuation and First-Order Transition in Trillium Lattice of EuPtSi Observed by 151Eu Mossbauer Spectroscopy»
11.45 – 12.15 Coffee break
12.30 – 20.00 Excursion to the Museum – Island “Kizhi”
Thursday. 11 July 2019
Session 6. Neutron scattering for non-collinear magnetism
Chairperson: Isabelle Mirebeau
9.30 – 10.00 Arsene Goukassov (Dr., LLB CEA-CNRS, Saclay, France)
«Polarized Neutrons studies of weak magnetization densities»
10.00 – 10.30 Vladimir Hutanu (Dr., RWTH Aachen University, Institute of Crystallography, Germany)
«Determining the sign of DMI in MnCO3 by polarised neutron diffraction»
10.30 – 10.45 Yusuke Araki (Mr., The University of Tokyo, Japan)
«High-field optical study of metamagnetic transitions in a chiral polar magnet Ni2InSbO6»
10.45 – 11.00 Kirill Pschenichnyi (Mr., Petersburg Nuclear Physics Institute of NRC «Kurchatov Institute», Gatchina, Russia)
«Spin-wave stiffness of Dzyaloshinskii-Moriya helimagnets Fe1−x CoxSi studied by small-angle neutron scattering»
11.00 – 11.30 Coffee break
11.30 – 12.00 Catherine Pappas (Prof., TUDelft, Delft, Netherlands)
«Tilted conical phase and multiple skyrmionic phases in Cu2OSeO3»
12.00– 12.15 Mikhail Chuev (Mr., Valiev Institute of Physics and Technology of RAS, Russia)
«The Morin Transition and Dzyaloshinskii-Morya Effect in Hematite Nanoparticles»
12.15 – 12.30 Miguel Prado (Mr., Instituto de Ciencia de Materiales de Aragón (ICMA), Spain)
«Non collinear magnetic phases in spinel MnCr2O»
12.30 – 13.00 Igor Zobkalo (Dr., Petersburg Nuclear Physics Institute of NRC «Kurchatov Institute», Gatchina, Russia)
«On the 4f-3d coupling in orthomanganites Dy1-xHoxMnO3»
13.00 – 14.00 Lunch
Session 7. Thin films and surface effects in cubic ferromagnets without center of symmetry
Chair: Yoshihiko Togawa
14.00 – 14.30 Sergey Maleyev (Prof., Petersburg Nuclear Physics Institute of NRC «Kurchatov Institute», Gatchina, Russia)
«Surface magnetic layer and magnetic field»
14.30– 15.00 Alexey Ognev (Dr., Far Eastern Federal University, Russia)
«Effect of focused ion beam irradiation on the interface DMI and magnetic anisotropy thin films»
15.00 – 15.20 Oksana Koplak (Dr., IPCP RAS, Russia)
«Magnetic refrigeration by tuning of exchange spring, helix, fan in Ho/W films»
15.20 – 15.40 Dmitriy Tatarskiy (Dr., Institute for physics of microstructures RAS, Russia)
«Nanofabrication of Bloch and Néel skyrmions in Co/Pt multilayers»
15.40 – 16.00 Ksenia Chichay (Dr., Immanuel Kant Baltic Federal University, Kaliningrad, Russia) « Effect of interplay of Dzyaloshinskii-Moria and dipolar interactions on internal skyrmion structure in magnetic mulilayers.»
16.00 – 17.00 Poster session and Coffee break
Anatoly Tsvyashchenko (Dr., HPPI RAS, Russia)
«Quadrupole and magnetic hyperfine interaction arising on nuclei of 181Ta and 111Cd in noncentrosymmetric RhGe»
Daria Skanchenko (Mrs., Petersburg Nuclear Physics Institute of NRC «Kurchatov Institute», Gatchina, Russia)
«Investigation of the magnetic structure of Rh1-xFexGe by small-angle neutron diffraction»
Denis Salamatin (Dr., Vereshchagin Institute for High Pressure Physics, RAS, Moscow, Troitsk, Russia)
«Magnetic properties and Phase Separation in the noncentrosymmetric narrow band semiconductors Ru1-xCoxGe (B20), synthesized under high pressure»
Аlexander Ovsyanikov (Mr., Petersburg Nuclear Physics Institute of NRC «Kurchatov Institute», Gatchina, Russia)
«Spin waves in the high-temperature phase in a rare-earth orthoferrite HoFeO3»
Okumura Shun (Mr., The University of Tokyo, Japan)
«Numerical study of magnetic hedgehog lattices in itinerant electron systems»
Viktor Timofeev (Mr., Petersburg Nuclear Physics Institute of NRC «Kurchatov Institute», Gatchina, Russia)
«Comparative study of skyrmion crystal and triple helix states in non-centrosymmetric magnets»
17.00 – 17.30 K. Sharma (Dr., Laboratory of Information Technology, JINR, Dubna, Russia)
«Dzyaloshinskii-Moriya interaction as an agent to free the bound entangled states»
17.30 – 18.00 P. Kizhe (Dr., Grad-Kitezh University,Grad-Kitezh, Russia)
«Signs of life in terms of the fractal concept»
19.00 – 22.00 Gala dinner
Friday. 12 July 2019
9.30 - 12.00 Departure from Petrozavodsk